-perry



(No Model.) 6 Sheets-Sheet; 1.

SANDPPRING MAGINB. No. 474,686. Patented May 10, 1892.

(No Modem e sheets-snm 3.

J. L. PERRY. SANDPAPBBING MACHINE.

No. 474,686. I W Patented May l0, 1892.

. A f n n f :ne co., muro-urna.. wAsmnarou n c (No Model.) 6 Sheets--Sheet 4.

J. L. PERRY. SANDPAPBRING MAGHINB.

N0. 474,686. Patented Mey l0, 1892.

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(No Model.) A 6 Sheets-Sheet 5.

J. L. PERRY. SANDPAPBRING MACHINE.

No. 474,686. Patented May 10., 1892.

IllllllllmllIlllllIIIllllllllIIIllllillIIIlllllllIlmlmlIll]lllllllll(IlIllllII'IIIIIIllllllllllllllllllllll ...w-1.0 I I mmlmmmli l1f IIIIIIIIIHIIIIIIII] :um www( I E Iny "um" "l" E. Imm '""1 lmlmll UNITED STATES- PATENT OFFICE.

JAMES L. PERRY, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO

THE J. L. PERRY MACHINE COMPANY, OF SAME PLACE.

sANDPAPERlNe-MACHINE.

SPECIFICATION forming part of Letters Patent No. 474,686, dated May 10, 1892. Application filed March 20. 1891. i Serial No. 385.735. (No model.)

To all whom, it may concern:

Beit known that I, JAMES L. PERRY, a citiizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement 1n Sandpapering-Machines, of which the following 1s a specification.

Thisinvention relates to certain improvements 1n sandpapering-machines. As heretofore constructed, the driving-pulleys of the sand-paper cylinders of this kind of machines have been located on the end of the journals of theeylinders and outside of the bearings in whlch theyare supported, so that the belts exert constantly astrain in one direction upon such journals tending to twist them and to throw them out of their properline or position. t One object overcome this strain by the belts and prevent the journals from getting out of line under such strain.

Another object I have had is the construction of the machine in such manner as to permit the inclosing or covering up of all the driving belts and gears, so that the Workmens safety is not iinperilled, as in the old machines.

A third object has been the obtaining ready access to the ends of the cylinders to renew the sand-paper coverings, and this access is preferably made so full and free as to permit the slipping endwise'upon the cylinders of coverlngs in tubular form, having their edges already joined together.

Afourth object has been to provide means whereby thin stuif may be held down in a flat condition during its entire course through the machine instead of being held solely by the rolls and polishing-cylinders and allowed to wrinkle or curl upwhile passing through the spaces intervening between the various pairs of rolls or cylinders. i

The :nature of the means adapted for the accomplishment of these objects, together with the details of the construction of my iinprovement are fully set forth in the specification following, and illustrated in the accompanying drawings, forming part of said specification, and to them reference is hereby made.

The drawings show at Figures l and 2 elevto the cylinder. Velevation of one of the partitions supporting of my invention has been toV vations of opposite sides of myimproved machine. Figs. 3 and 4 are longitudinal vertical sections. Fig. 5 is a transverse Vertical section on the line 5 5 of Fig. 3. Fig. Gis a g5 horizontal section on the line 6 6 of Fig. l. Fig. 7 is an enlarged sectional view of the device used tov impart the endwise vibration to the polishing-cylinder and its attachment Fig. S is an enlargedend 6o the upper feed-rolls and forming the upper table ot' the machine.

In the drawings, A, B, and C represent castings formiug the uprights which support the machine and are connected together at front and rear by bracing-frames a:

D D are the sand-paper cylinders mounted upon journals CZ. The journals are longer than is customary, and are given an extra or 7o third bearing d at the end bearing the drivingpulleys E and outside the latter, eachjournal d having thus abearing at each end of the uprights A, B,and C, as indicated at a., I), and c. By reason of their extra bearings a and their location beyond the pulleys, the belt strain upon the latter is effectually overcome, and can have no effect in drawing or twisting the journals out of their proper alignment or in producingthe unequal wear of the bearings 8o which has heretofore been the case. By the provision of this extra bearing I am enabled to extend the journals sufficiently to permit the putting of the pulleys of all the cylinders at the same side of the machine and also the driving them from a single short countershaft without causing interference with each other or their belts. In the case of each cylinder the bearings a, b, and c are simultaneously and uniformly adjusted vertically by means 9o of vertical screws c, entering threaded recesses in the bearings, bevel-pinions 2 upon i such screws, other like pinions 3, intermeshing with pinions 2 and mounted upon a shaft 4, extending across the machine and operated by a hand-wheel 5.

The end of the sand-paper cylinders is rendei-ed readily accessible by means of removable doors F, supported upon the end piece B. These doors I prefer to make independent of roo each other and to place one opposite each cylinder, thereby permitting admission to any one of the series without regard to the others.

The doors are held in position by means of buttons f, placed in the angle between the doors at the top and buttons f', located at their bottoms. The doors may also be clamped edgewise between the stop f2 and the setscrew f3. To obtain complete access to the ends of the cylinders, so as to permit the placing on the cylinders of sand-paper tubes or covers by a longitudinal movement of the cover over and along the cylinders, the bearings b at this end of the cylinders are also made removable, and they may also be and preferably are at-tached to the doors F, so as to be sustained thereby against the end thrust of the cylinder-journals and also against lateral movement, the doors being free to move with the bearings in the vertical adjustments of the latter, and being guided in such movements by their contact with each other and by stopf2 and set-screw f3. To permit this removabilityof bearings b, the followingconstruction may be adopted with each of them. The adjusting-screw cof these bearings is sustained in a boX l0, supported by arms l1 from a collar l2,slidingly mounted upon the shaftv 4. The latter shaft is extended suiiiciently to sustain the collarV l2, when the latter is moved outwardly to allow the bearing b to be slipped off the cylinder-journal (l, which operation may be performed after releasing the clamping-screw and buttons holding the door. NVhen the bearing is free from the journal, the door may be swung to-one side upon its said supporting-shaft 4.

WVhen the bearings b are removed from the cylinder-journals, as above set forth, the cylinders are well supported by the other bearings a and c, as will be understood.

Between the several sand-paper cylinders and also in front and in the rear of the first and last ones are placed feed-rolls G, and each of such rolls is preferably countered by under feed-rolls H, as shown. I also preferably place under each of the cylinders a pressure-roll J, as shown. All these rolls G, H, and J are driven at a uniform surface speed by trains of gears, all receiving motion from the gear 20, mounted on shaft 21, and actuated by means of pulley 22 and a belt from shaft and pulley 24, or from some other source. The gear 20 meshes with the large gear 25 and through the same drives the train26, 27, 28, 29, 30, and 3l, gears 26, 27, 29, and 3l each actuating one of the rolls G. Gear 25 also meshes with a gear 32, and the latter drives the train 33 34 35 36, &c., of which alternate ones actuate the rolls II and J. The upper rolls G are placed below transverse vertical partitions L, located at either side of the several cylinders D, and serving to form chambers, so to speak, for each cylinder, wherein they are separated from each other and prevented from throwing the dust and chips which they may dislodge from the surface being polished upon or against each other. The suction-conduit M opens from the upper portion of theinclosiug case of the machine above these cylinder-spaces and draws the dust directly therefrom. In this way the cylinders are prevented from interference with each other as might be the case if the particles of matter severed by one cylinder were permitted to ily orbe thrown over or nd lodgment upon the surface of the next succeeding cylinder, or where they will be drawn into the field of action ofthe latter cylinder. The partitions L are also provided with arched shields m, which set down over the feed-rolls G, as clearly illustrated at Fig. 8, and shelter the latter from the dust. Feet'N extend laterally from the shields m into close proximity to the sandpaper-cylinders, as shown. They extend from end to end of the cylinders, also, and serve as an upper table to the machine, acting upon any thin stuff being polished to keep it fiat and prevent its springing up or curling while in transit between the various pairs of rolls or cylinders.

The bearings of rolls G at one end are adustable by means of screws O,passin gthrough the horizontal hars o of the upright C, and at the other end by the screws P, sustained in the partitions. The screws O are operated by the nuts 0', while screws I) are confined against sliding in the projections p, formed upon the partitions by the collars p', rigidly secured on the screws, and are operated by means of spanner-openings in said collars.

R is the table of the machine, over which the stuff to be polished is passed. It is sup: ported from uprights B and C by screws r at either corner, and said screws are simultane- Upon the turned-down ends of the journals? dand between shoulders 60 and collar 6l, threaded on the extreme ends of the journais, are sleeves S. These sleeves are threaded exteriorly and in engagement with the female threaded sockets s, attached to the cylinder-beariugs d, the pitch of the threads being steep. From each sleeve extendsa crankarm T, and the series of crank-arms are joined together by a bar t, as seen at Fig. 2. A pitman U, connected to one of the cranks T and actuated by the crank u upon the drive-shaft 23, serves to oscillate the crankarms T, and thus to cause the sleeves to rock in sockets s, and impart the desired longitudinal movement to the cylinders. This movement is thus caused by devices applying the power directly at the axis of the cyl- IOO IIO

This yielding is obtained by supportinders and at Aall sides thereof alike, thus avoiding any tendency to twist or bind upon tend to canse any loosened iibers which may be adhering thereto to lay down upon the surface instead .of removing them, and for this reason they have failed to be as effective as is desirable. In my present machine I give the brush a movement forward and back-` ward, so that this tendency to make the fibers lie down is overcome, the movement in one direction tending to loosen or lift the fibers and the movement in the other direction tending to sever or remove them. This movement may be a reciprocating one or an oscillatingone. In the construction shown I have mounted the brush W upon-a shaft w, and connected it by means of a pitman y with a crank-disk Y upon the shaft 23. The bearings of shaft w are supported from screws 71, passing through projecting studs 72, at tached to the standards B and C, this construction allowing the bearings to be adj usted as the brush becomes worn or for any other reason.

The operating' parts of the machine, together with the driving-gears of the feed mechanism and the belts for actuating the polishing-cylinders, are all inclosed in my machine by a covering of metal composed of the top portion 8O and front and rear portions Si and 82. Said front and rear portions 8l and 82 are hinged to the part SO, as shown at 83, so that they may be raised when access is desired to the moving parts of the machine. This covering rests upon and is supported by the uprights, as shown, and it maybe extended below the level of the table at that part of the machine inclosing the gearing and driving-belts, as will be noticed in the drawings. By thus covering the drivingbelts and gearing the safety of the Workman against accident is conserved.

It will be noticed that all the drive-pulleys for actuating the cylinders are located at the same end of the cylinders and between the nprights A and C. This leaves the other side of the machine unobstructed by pulleys and belts, and I am enabled therefore to put in the sandpaper from the unobstructed side with much greater ease than has been possible heretofore in this class of Sanders. The added upright or frame A further serves to inclose all the moving parts of the machine except the vibratory devices.

By making both the end bearing and that portion of the machine-frame opposite the end of the sandpaper cylinder removable, I

am enabled not only to conveniently and expeditiously replace the sandpaper, but I can also remove the cylinder whenever that is rendered necessary for repairs. I thus obviate the necessity which exists in previous constructions of dismantling the entire machine in order to get at or remove 'the cylinder. I claim y l. In a sandpapering-machine, a sand-paper cylinder having a long journal and three Vertically-ad j ustable bearings, one of said bearings being adapted to be moved With its adjusting device endwise of the cylinder-journal and off the same, substantially as set forth.

2. The combination, with a sand-paper cylinder,.of a bearing for the end of said cylinder removable from the cylinder-shaft, and

`an adjustingdevice supporting the bearing and made removable with the same, substantially as set forth.

3. In a sandpapering-machine, the combination of the cylinder with the uprights in which it is journaled, one of said nprights being provided with a removable portion adapted when removed to uncover the end of the cylinder, substantially as set forth.

4. In a sandpapering-machine, the combination of the cylinder with the uprights in which it is jonrnaled, one of said uprights `being provided with a removable portion adapted when removed to uncover the end of `the cylinder, and a removable bearing at the same end of the cylinder, substantially asset forth.

5. In a sandpapering-machine, a cylinder provided with a vertically-adjustable bearn g at one end removable at will to allow the `sand-paper covering to be slipped endwise over the end of the cylinder, and With a vertically-adjustable support at the other end adapted to maintain the cylinder in position when the removable bearin g is taken off, substantially as set forth.

6. The combination, with the cylinders, of removable bearings b, adjusting-screws for said bearings, boxes sustaining said screws, arms from said boxes to collars l2, and the extended shafts et, uponwhich the collars are mounted, and said collars and shafts, substantially as set forth.

7. In a sandpapering-machine, the combination of a plurality of sandpapering-cylinders having their driving-pulleys at the same side of the machine and all having removable bearings at the other side of the machine, whereby all the cylinders are rendered accessible from the same end, substantially as set forth.

8. The sandpapering machine provided With an upper and lower table confining the material While in transit from one pair of rolls or cylinders to the next pair, one of said tables being formed by the feet of partitions placed between the cylinders, substantially as set forth.

9. In a sandpapering-machine, the combination, with the cylinders and feed-rolls, of

IOO

IIO

IIS

the feet N, placed between the cylinders and feed-rolls, and the partitions supporting said feet, substantially as set forth.

l0. The combination, with sandpaperingcylinders, of the sleeves S, confined on the cylinder-journals and having threaded engagement with stationary sockets, in combination with such sockets and means for rocking the sleeves upon the journals, substantiall y as specified.

l1. In combination with the cylinders ofthe rocking threaded sleeves confined on the cylinder-journals, a stationary female screw with which said sleeves engage, and means for rocking said sleeve, substantially as set forth.

12. As a means for giving endwise movement to the cylinders, a rocking screw confined on the cylinder-journals,in combination with a stationary screw with which said rocking screw engages, substantially as set forth.

13. The sandpapering-machine, the cylinders whereof are inclosed and are all driven by pulleys located at one side of the machine, the inclosing frame at the other side of the machine being provided with removable portions whereby to uncover the ends of the cylinders, substantially as set forth.

14. The combination, in a sandpaper-ingmachine, of a' cylinder and its bearings sustained by vertical screws, one of said screws being movably supported so as to permit a sliding movement by the bearing carried by it, substantially as set forth.

l5. The combination, in a sandpaperingmachine, of a cylinder and its bearings, vertical screws carrying said bearings, supports for said screws, and means for turning the screws to adjust the cylinder, the support for one of the screws being movable to permit lthe removal of the bearing carried by it from the cylinder, substantially as set forth.

16. In a sandpapering-machine, the combination of an adjustable cylinder with a supporting and inclosing frame, such frame havinga removable and adjustable portion opposite one end of the cylinder, and the cylinder having its bearing at the same end also removable, substantially as set forth.

17. In a sandpapering-machine, the combination of three upright frames and sand-paper cylinders, the journals whereof are provided with adjustable bearings at each of such frames, all the cylinders being` located between one of the end frames and the center frame and all their pulleys being` located between the center frame and the other end frame, substantially as set forth.

JAMES L. PERRY. VitnesSes:

H. M. MUNDAY, EMMA HACK. 

